I got your question, but unfortunately didn’t fully understand it.
Could you clarify and supplement it. Perhaps you can make screenshots,
and provide more detailed description in English. Then I will be happy to answer it.

I have a table consists of 7 columns and I want to change the width of the first column on the left, through css in this way (22% 13% 13% 13% 13% 13% 13%) I tried to change the width attribute but does not work .
Translated with google, I hope you understand
Thank you

In order to set column width follow next steps:
– Create or open Pricing Table you need
– Disable “Enable Responsivity” option – screenshot – http://prntscr.com/e6mspi
– Point on the first column to see the Column Editor
– Click on Attribute
– In styles row enter —
width: 22%;